
function changeVerifyCode(img){
	img.src='../Kaptcha?' + Math.floor(Math.random() * 100);
}

function getQueryString(name){
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if(r!=null){
        return decodeURIComponent(r[2]);
    }
    return "";
}